cirsium tuberosum purple flowers

asteraceae blooming blossom botanical botany brunneri bulbosus cardueae carduus cirsium color cynareae detail ecology environment europe european flora flower flowerhead flowering green herb herbaceous iberian inflorescence mauve natural nature peninsula pink plant prickles purple purplish season seasonal sharpen spain spiny spring springtime thistle tuberosum tuberosus tuberous weed wild wildflower